Fix configuration problems where XAssetDatabasePlugin was picked up accidentally.

The asset data plugin now implements IXAssetData rather than IAssetData so the ordinary AssetService should no longer pick it up.
This replaces the changes in 92b1ade.  There is no longer any need to adjust your StandaloneCommon.ini/Robust.ini/Robust.HG.ini files.
This may explain very recent issues in the last few weeks where textures have been disappearing or turning white (as they were going to different places).
Unfortunately, you will need to rollback to an earlier database backup or reupload the textures.

7 files changed, 154 insertions, 16 deletions

diff --git a/OpenSim/Data/IXAssetDataPlugin.cs b/OpenSim/Data/IXAssetDataPlugin.cs
new file mode 100644
index 0000000..74ad6f4
--- /dev/null
+++ b/OpenSim/Data/IXAssetDataPlugin.cs
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System.Collections.Generic;
+using OpenMetaverse;
+using OpenSim.Framework;
+
+namespace OpenSim.Data
+{
+    /// <summary>
+    /// This interface exists to distinguish between the normal IAssetDataPlugin and the one used by XAssetService
+    /// for now.
+    /// </summary>
+    public interface IXAssetDataPlugin : IPlugin
+    {
+        AssetBase GetAsset(UUID uuid);
+        void StoreAsset(AssetBase asset);
+        bool ExistsAsset(UUID uuid);
+        List<AssetMetadata> FetchAssetMetadataSet(int start, int count);
+        void Initialise(string connect);
+        bool Delete(string id);
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Data/MySQL/MySQLXAssetData.cs b/OpenSim/Data/MySQL/MySQLXAssetData.cs
index 06fe55a..e6ac22e 100644
--- a/OpenSim/Data/MySQL/MySQLXAssetData.cs
+++ b/OpenSim/Data/MySQL/MySQLXAssetData.cs
@@ -41,7 +41,7 @@ using OpenSim.Data;
 
 namespace OpenSim.Data.MySQL
 {
-    public class MySQLXAssetData : AssetDataBase
+    public class MySQLXAssetData : IXAssetDataPlugin
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
@@ -61,7 +61,7 @@ namespace OpenSim.Data.MySQL
 
         #region IPlugin Members
 
-        public override string Version { get { return "1.0.0.0"; } }
+        public string Version { get { return "1.0.0.0"; } }
 
         /// <summary>
         /// <para>Initialises Asset interface</para>
@@ -74,7 +74,7 @@ namespace OpenSim.Data.MySQL
         /// </para>
         /// </summary>
         /// <param name="connect">connect string</param>
-        public override void Initialise(string connect)
+        public void Initialise(string connect)
         {
             m_log.ErrorFormat("[MYSQL XASSETDATA]: ***********************************************************");
             m_log.ErrorFormat("[MYSQL XASSETDATA]: ***********************************************************");
@@ -96,17 +96,17 @@ namespace OpenSim.Data.MySQL
             }
         }
 
-        public override void Initialise()
+        public void Initialise()
         {
             throw new NotImplementedException();
         }
 
-        public override void Dispose() { }
+        public void Dispose() { }
 
         /// <summary>
         /// The name of this DB provider
         /// </summary>
-        override public string Name
+        public string Name
         {
             get { return "MySQL XAsset storage engine"; }
         }
@@ -121,7 +121,7 @@ namespace OpenSim.Data.MySQL
         /// <param name="assetID">Asset UUID to fetch</param>
         /// <returns>Return the asset</returns>
         /// <remarks>On failure : throw an exception and attempt to reconnect to database</remarks>
-        override public AssetBase GetAsset(UUID assetID)
+        public AssetBase GetAsset(UUID assetID)
         {
 //            m_log.DebugFormat("[MYSQL XASSET DATA]: Looking for asset {0}", assetID);
 
@@ -190,7 +190,7 @@ namespace OpenSim.Data.MySQL
         /// </summary>
         /// <param name="asset">Asset UUID to create</param>
         /// <remarks>On failure : Throw an exception and attempt to reconnect to database</remarks>
-        override public void StoreAsset(AssetBase asset)
+        public void StoreAsset(AssetBase asset)
         {
             lock (m_dbLock)
             {
@@ -380,7 +380,7 @@ namespace OpenSim.Data.MySQL
         /// </summary>
         /// <param name="uuid">The asset UUID</param>
         /// <returns>true if it exists, false otherwise.</returns>
-        override public bool ExistsAsset(UUID uuid)
+        public bool ExistsAsset(UUID uuid)
         {
 //            m_log.DebugFormat("[ASSETS DB]: Checking for asset {0}", uuid);
 
@@ -426,7 +426,7 @@ namespace OpenSim.Data.MySQL
         /// <param name="start">The number of results to discard from the total data set.</param>
         /// <param name="count">The number of rows the returned list should contain.</param>
         /// <returns>A list of AssetMetadata objects.</returns>
-        public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count)
+        public List<AssetMetadata> FetchAssetMetadataSet(int start, int count)
         {
             List<AssetMetadata> retList = new List<AssetMetadata>(count);
 
@@ -471,7 +471,7 @@ namespace OpenSim.Data.MySQL
             return retList;
         }
 
-        public override bool Delete(string id)
+        public bool Delete(string id)
         {
 //            m_log.DebugFormat("[XASSETS DB]: Deleting asset {0}", id);
 
diff --git a/OpenSim/Services/AssetService/XAssetService.cs b/OpenSim/Services/AssetService/XAssetService.cs
index d161c58..05eb125 100644
--- a/OpenSim/Services/AssetService/XAssetService.cs
+++ b/OpenSim/Services/AssetService/XAssetService.cs
@@ -42,7 +42,7 @@ namespace OpenSim.Services.AssetService
     /// This will be developed into a de-duplicating asset service.
     /// XXX: Currently it's a just a copy of the existing AssetService. so please don't attempt to use it.
     /// </summary>
-    public class XAssetService : AssetServiceBase, IAssetService
+    public class XAssetService : XAssetServiceBase, IAssetService
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
diff --git a/OpenSim/Services/AssetService/XAssetServiceBase.cs b/OpenSim/Services/AssetService/XAssetServiceBase.cs
new file mode 100644
index 0000000..0c5c2c3
--- /dev/null
+++ b/OpenSim/Services/AssetService/XAssetServiceBase.cs
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Reflection;
+using Nini.Config;
+using OpenSim.Framework;
+using OpenSim.Data;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.Base;
+
+namespace OpenSim.Services.AssetService
+{
+    public class XAssetServiceBase : ServiceBase
+    {
+        protected IXAssetDataPlugin m_Database = null;
+        protected IAssetLoader m_AssetLoader = null;
+
+        public XAssetServiceBase(IConfigSource config) : base(config)
+        {
+            string dllName = String.Empty;
+            string connString = String.Empty;
+
+            //
+            // Try reading the [AssetService] section first, if it exists
+            //
+            IConfig assetConfig = config.Configs["AssetService"];
+            if (assetConfig != null)
+            {
+                dllName = assetConfig.GetString("StorageProvider", dllName);
+                connString = assetConfig.GetString("ConnectionString", connString);
+            }
+
+            //
+            // Try reading the [DatabaseService] section, if it exists
+            //
+            IConfig dbConfig = config.Configs["DatabaseService"];
+            if (dbConfig != null)
+            {
+                if (dllName == String.Empty)
+                    dllName = dbConfig.GetString("StorageProvider", String.Empty);
+                if (connString == String.Empty)
+                    connString = dbConfig.GetString("ConnectionString", String.Empty);
+            }
+
+            //
+            // We tried, but this doesn't exist. We can't proceed.
+            //
+            if (dllName.Equals(String.Empty))
+                throw new Exception("No StorageProvider configured");
+
+            m_Database = LoadPlugin<IXAssetDataPlugin>(dllName);
+            if (m_Database == null)
+                throw new Exception("Could not find a storage interface in the given module");
+
+            m_Database.Initialise(connString);
+
+            string loaderName = assetConfig.GetString("DefaultAssetLoader",
+                    String.Empty);
+
+            if (loaderName != String.Empty)
+            {
+                m_AssetLoader = LoadPlugin<IAssetLoader>(loaderName);
+
+                if (m_AssetLoader == null)
+                    throw new Exception("Asset loader could not be loaded");
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/bin/Robust.HG.ini.example b/bin/Robust.HG.ini.example
index d98c826..db9f08b 100644
--- a/bin/Robust.HG.ini.example
+++ b/bin/Robust.HG.ini.example
@@ -66,7 +66,6 @@ ServiceConnectors = "8003/OpenSim.Server.Handlers.dll:AssetServiceConnector,8003
 ; * in turn, reads the asset loader and database connection information
 ; *
 [AssetService]
-    StorageProvider = "OpenSim.Data.MySQL.dll:MySQLAssetData"
     LocalServiceModule = "OpenSim.Services.AssetService.dll:AssetService"
     DefaultAssetLoader = "OpenSim.Framework.AssetLoader.Filesystem.dll"
     AssetLoaderArgs = "./assets/AssetSets.xml"
diff --git a/bin/Robust.ini.example b/bin/Robust.ini.example
index 691bfdc..326caeb 100644
--- a/bin/Robust.ini.example
+++ b/bin/Robust.ini.example
@@ -58,7 +58,6 @@ ServiceConnectors = "8003/OpenSim.Server.Handlers.dll:AssetServiceConnector,8003
 ; * in turn, reads the asset loader and database connection information
 ; *
 [AssetService]
-    StorageProvider = "OpenSim.Data.MySQL.dll:MySQLAssetData"
     LocalServiceModule = "OpenSim.Services.AssetService.dll:AssetService"
     DefaultAssetLoader = "OpenSim.Framework.AssetLoader.Filesystem.dll"
     AssetLoaderArgs = "./assets/AssetSets.xml"
diff --git a/bin/config-include/StandaloneCommon.ini.example b/bin/config-include/StandaloneCommon.ini.example
index 4c734a1..3dfbed7 100644
--- a/bin/config-include/StandaloneCommon.ini.example
+++ b/bin/config-include/StandaloneCommon.ini.example
@@ -44,7 +44,6 @@
     ;AuthorizationServices = "LocalAuthorizationServicesConnector"
 
 [AssetService]
-    StorageProvider = "OpenSim.Data.MySQL.dll:MySQLAssetData"
     DefaultAssetLoader = "OpenSim.Framework.AssetLoader.Filesystem.dll"
     AssetLoaderArgs = "assets/AssetSets.xml"
 
@@ -241,4 +240,4 @@
         ; DisallowForeigners -- HG visitors not allowed
         ; DisallowResidents -- only Admins and Managers allowed
         ; Example:
-        ; Region_Test_1 = "DisallowForeigners"
\ No newline at end of file
+        ; Region_Test_1 = "DisallowForeigners"